Quantitative studies of intermediate host populations in the transmission of schistosomes.
D000818:Animals; D001522:Behavior, Animal; D002980:Climate; D004463:Ecology; D005298:Fertility; D006801:Humans; D012552:Schistosomiasis / Q000453:epidemiology* / Q000517:prevention & control; D012621:Seasons; D012908:Snails; D013223:Statistics as Topic; D015047:Zoonoses / Q000453:epidemiology